华南山区某深路堑边坡加固处治技术  

Reinforcement Treatment Technique for Deep Cutting Slope in Mountainous Area of South China

作　　者：王洪存 WANG Hongcun(Zhejiang Communication Investment Group Co.,Ltd.,Hangzhou 310000)

机构地区：[1]浙江交投高速公路建设管理有限公司,杭州310000

出　　处：《公路交通技术》2021年第4期19-26,共8页Technology of Highway and Transport

摘　　要：为了解决华南山区某深路堑边坡的稳定性问题,基于边坡破坏成因评价其稳定性,结合工程实际从稳定性和经济性等方面提出了“清方卸载+适当锚固”的最优深路堑边坡加固处治方案,并通过变形监测验证了方案的可行性。结果表明:边坡因软弱结构面出现了沿顺坡向软弱带的整体滑动;采用“清方卸载+适当锚固”边坡加固方案具有造价低、施工难度小、施工工期短的优势,且后期安全风险相对较小;采用该方案处治边坡时,可有效减少边坡变形,保证边坡的整体稳定性。In order to solve the stability problem of a deep cutting slope in South China mountain area,the stability was evaluated based on the causes of slope failure.Combining the actual project,the optimal deep cutting slope reinforcement treatment plan of"excavation and unloading+appropriate anchoring"was put forward from the aspects of stability and economy.The feasibility of the recommended scheme was verified as well through the deformation monitoring.The result has shown that the overall sliding along the weak zone along the slope occurred due to the existence of weak structural plane.The slope reinforcement scheme of“clearing and unloading+proper anchoring”has the advantages of low cost,small construction difficulty,short construction period,and less safety risk in the later period.When adopting the recommended scheme to treat the slope,the deformation of the slope can be effectively reduced,and the overall stability of the side slope can be ensured.

关 键 词：深路堑 边坡加固 稳定性评价 不平衡推力法 变形监测 

分 类 号：U418.52[交通运输工程—道路与铁道工程]